aryl diazonium saltsISI Web of KnowledgeCOSDiazoniumsIodoniumsMACOPOLE 1PhosphoniumsSelenoniumsSulfoniumsTelluroniumsbond-cleavagec-h arylationdiaryliodonium saltselectrochemical reductionone-electron reductionpulse-radiolysisradicalsredox catalysisreductionsubstituted diphenyliodonium saltssulfonium saltsHomolytic Reduction of Onium Salts425-432English10.2533/chimia.2012.425WOS:000306091000014Onium salts have proved to be efficient sources of carbon-centered radicals. They can undergo homolytic reduction by single electron transfer (SET) and participate in subsequent synthetic transformations. This review aims to provide an overview on the behavior of onium salts including diazonium, sulfonium, selenonium, telluronium, phosphonium and iodonium cations toward various reductive methods such as radiolysis, electrolysis, photolysis or the use of SET reagents. Mechanistic and synthetic aspects are presented. Applications in polymers and materials science are not covered.